This is a minor release to fix a few issues in Snapcraft and sets some groundwork fixes to easily enable new extensions
Sergio Schvezov
- meta: transparently support command-chain
- extensions: structure the base extension class
- extensions: refactor checks into the extension base class
- extensions: support confinement restrictions
- appstream: xslt support for ul nested in p
Colin Watson
- store: send snapcraft-started-at in push requests